/*
 * Copyright (c) 2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Plugin storage class
 *
 * Used to share data between modules during plugin execution, only one instance exists throughout the plugin execution
 */
export class PluginStore {
  private static instance: PluginStore | null = null;
  private dataMap: Map<string, unknown> = new Map();

  private constructor() {}

  public set(key: string, value: any): void {
    this.dataMap.set(key, value);
  }

  public get<T>(key: string): T | undefined {
    return this.dataMap.get(key) as T | undefined;
  }

  private clear(): void {
    this.dataMap.clear();
  }

  public static destroy(): void {
    this.getInstance().clear();
    this.instance = null;
  }

  public static getInstance():PluginStore {
    if (!this.instance) {
      this.instance = new PluginStore();
    }
    return this.instance;
  }
}
